EARTH CORING DRILL,申请号CAD297021-传众专利搜索

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发明名称	EARTH CORING DRILL
摘要
申请公布号	CA297021(A)	申请公布日期	1930.01.28
申请号	CAD297021	申请日期
申请人	CLARENCE E. REED	发明人	CLARENCE E. REED
分类号		主分类号
代理机构		代理人
主权项
地址

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